Great Plains NP4000 40-foot Operator Manual - Manual (Page 65)

Great Plains Manufacturing, Inc. Table of Contents Index Adjustments 61
2012-03-28 Table of Contents Index 407-776M
2012+ Caster Adjustment
Figure 43
90 Inch (30 inch In Row) Spacing
With the caster pins the through the holes third from
the rear of the lift assist frame, and through the inside
tubes of the forward caster pivot weldments, the caster
arms are in straight trail, and provide a
90 inch (2.29 m) wheel spacing.
Wheels are directly behind 30 inch rows.
120 Inch (30 inch Out of Row) Spacing
With the caster pins the through the holes second
from the rear of the lift assist frame, and through the
inside tubes of the forward caster pivot weldment, the
caster arms are angled out, and provide a
120 inch (3.05 m) wheel spacing.
Wheels are between 30 inch rows.
148 Inch (36/38 inch In Row) Spacing
With the caster pins the through the rear holes of the
lift assist frame, and through the inside tubes of the
forward caster pivot weldment, the caster arms are
angled out, and provide a
148 inch (3.76 m) wheel spacing.
Wheels are between 36 and 38 inch rows.
Note: Other configurations of the pins are not
recommended. In particular, it is not necessary to
set a wheel stance asymmetry for side-dress.
Figure 43
2012+ Caster Wheel Spacing Pin
34117
148
120
90
90
120
148